void EvalContextDestroy(EvalContext *ctx) { if (ctx) { StringSetDestroy(ctx->heap_soft); StringSetDestroy(ctx->heap_hard); StringSetDestroy(ctx->heap_negated); DeleteItemList(ctx->heap_abort); DeleteItemList(ctx->heap_abort_current_bundle); SeqDestroy(ctx->stack); ScopeDeleteAll(); StringSetDestroy(ctx->dependency_handles); PromiseSetDestroy(ctx->promises_done); } }
static bool ScheduleRun(EvalContext *ctx, Policy **policy, GenericAgentConfig *config, ExecConfig *exec_config) { CfOut(OUTPUT_LEVEL_VERBOSE, "", "Sleeping for pulse time %d seconds...\n", CFPULSETIME); sleep(CFPULSETIME); /* 1 Minute resolution is enough */ /* * FIXME: this logic duplicates the one from cf-serverd.c. Unify ASAP. */ if (CheckNewPromises(ctx, config, InputFiles(ctx, *policy)) == RELOAD_FULL) { /* Full reload */ CfOut(OUTPUT_LEVEL_INFORM, "", "Re-reading promise file %s..\n", config->input_file); EvalContextHeapClear(ctx); DeleteItemList(IPADDRESSES); IPADDRESSES = NULL; ScopeDeleteAll(); strcpy(VDOMAIN, "undefined.domain"); POLICY_SERVER[0] = '\0'; PolicyDestroy(*policy); *policy = NULL; SetPolicyServer(ctx, POLICY_SERVER); ScopeNewSpecialScalar(ctx, "sys", "policy_hub", POLICY_SERVER, DATA_TYPE_STRING); GetNameInfo3(ctx, AGENT_TYPE_EXECUTOR); GetInterfacesInfo(ctx, AGENT_TYPE_EXECUTOR); Get3Environment(ctx, AGENT_TYPE_EXECUTOR); BuiltinClasses(ctx); OSClasses(ctx); EvalContextHeapAddHard(ctx, CF_AGENTTYPES[AGENT_TYPE_EXECUTOR]); SetReferenceTime(ctx, true); GenericAgentConfigSetBundleSequence(config, NULL); *policy = GenericAgentLoadPolicy(ctx, config); ExecConfigUpdate(ctx, *policy, exec_config); SetFacility(exec_config->log_facility); } else { /* Environment reload */ EvalContextHeapClear(ctx); DeleteItemList(IPADDRESSES); IPADDRESSES = NULL; ScopeClear("this"); ScopeClear("mon"); ScopeClear("sys"); GetInterfacesInfo(ctx, AGENT_TYPE_EXECUTOR); Get3Environment(ctx, AGENT_TYPE_EXECUTOR); BuiltinClasses(ctx); OSClasses(ctx); SetReferenceTime(ctx, true); } { StringSetIterator it = StringSetIteratorInit(exec_config->schedule); const char *time_context = NULL; while ((time_context = StringSetIteratorNext(&it))) { if (IsDefinedClass(ctx, time_context, NULL)) { CfOut(OUTPUT_LEVEL_VERBOSE, "", "Waking up the agent at %s ~ %s \n", cf_ctime(&CFSTARTTIME), time_context); return true; } } } CfOut(OUTPUT_LEVEL_VERBOSE, "", "Nothing to do at %s\n", cf_ctime(&CFSTARTTIME)); return false; }
int OpenReceiverChannel(void) { struct addrinfo *response, *ap; struct addrinfo query = { .ai_flags = AI_PASSIVE, .ai_family = AF_UNSPEC, .ai_socktype = SOCK_STREAM }; /* Listen to INADDR(6)_ANY if BINDINTERFACE unset. */ char *ptr = NULL; if (BINDINTERFACE[0] != '\0') { ptr = BINDINTERFACE; } /* Resolve listening interface. */ if (getaddrinfo(ptr, STR_CFENGINEPORT, &query, &response) != 0) { Log(LOG_LEVEL_ERR, "DNS/service lookup failure. (getaddrinfo: %s)", GetErrorStr()); return -1; } int sd = -1; for (ap = response; ap != NULL; ap = ap->ai_next) { if ((sd = socket(ap->ai_family, ap->ai_socktype, ap->ai_protocol)) == -1) { continue; } int yes = 1; if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1) { Log(LOG_LEVEL_ERR, "Socket option SO_REUSEADDR was not accepted. (setsockopt: %s)", GetErrorStr()); exit(1); } struct linger cflinger = { .l_onoff = 1, .l_linger = 60 }; if (setsockopt(sd, SOL_SOCKET, SO_LINGER, &cflinger, sizeof(cflinger)) == -1) { Log(LOG_LEVEL_ERR, "Socket option SO_LINGER was not accepted. (setsockopt: %s)", GetErrorStr()); exit(1); } if (bind(sd, ap->ai_addr, ap->ai_addrlen) != -1) { if (LogGetGlobalLevel() >= LOG_LEVEL_DEBUG) { /* Convert IP address to string, no DNS lookup performed. */ char txtaddr[CF_MAX_IP_LEN] = ""; getnameinfo(ap->ai_addr, ap->ai_addrlen, txtaddr, sizeof(txtaddr), NULL, 0, NI_NUMERICHOST); Log(LOG_LEVEL_DEBUG, "Bound to address '%s' on '%s' = %d", txtaddr, CLASSTEXT[VSYSTEMHARDCLASS], VSYSTEMHARDCLASS); } break; } else { Log(LOG_LEVEL_ERR, "Could not bind server address. (bind: %s)", GetErrorStr()); cf_closesocket(sd); } } if (sd < 0) { Log(LOG_LEVEL_ERR, "Couldn't open/bind a socket"); exit(1); } freeaddrinfo(response); return sd; } /*********************************************************************/ /* Level 3 */ /*********************************************************************/ void CheckFileChanges(EvalContext *ctx, Policy **policy, GenericAgentConfig *config) { Log(LOG_LEVEL_DEBUG, "Checking file updates for input file '%s'", config->input_file); if (NewPromiseProposals(ctx, config, InputFiles(ctx, *policy))) { Log(LOG_LEVEL_VERBOSE, "New promises detected..."); if (CheckPromises(config)) { Log(LOG_LEVEL_INFO, "Rereading policy file '%s'", config->input_file); /* Free & reload -- lock this to avoid access errors during reload */ EvalContextHeapClear(ctx); DeleteItemList(IPADDRESSES); IPADDRESSES = NULL; DeleteItemList(SV.trustkeylist); DeleteItemList(SV.skipverify); DeleteItemList(SV.attackerlist); DeleteItemList(SV.nonattackerlist); DeleteItemList(SV.multiconnlist); DeleteAuthList(SV.admit); DeleteAuthList(SV.deny); DeleteAuthList(SV.varadmit); DeleteAuthList(SV.vardeny); DeleteAuthList(SV.roles); //DeleteRlist(VINPUTLIST); This is just a pointer, cannot free it ScopeDeleteAll(); strcpy(VDOMAIN, "undefined.domain"); POLICY_SERVER[0] = '\0'; SV.admit = NULL; SV.admittop = NULL; SV.varadmit = NULL; SV.varadmittop = NULL; SV.deny = NULL; SV.denytop = NULL; SV.vardeny = NULL; SV.vardenytop = NULL; SV.roles = NULL; SV.rolestop = NULL; SV.trustkeylist = NULL; SV.skipverify = NULL; SV.attackerlist = NULL; SV.nonattackerlist = NULL; SV.multiconnlist = NULL; PolicyDestroy(*policy); *policy = NULL; { char *existing_policy_server = ReadPolicyServerFile(GetWorkDir()); SetPolicyServer(ctx, existing_policy_server); free(existing_policy_server); } GetNameInfo3(ctx, AGENT_TYPE_SERVER); GetInterfacesInfo(ctx, AGENT_TYPE_SERVER); Get3Environment(ctx, AGENT_TYPE_SERVER); BuiltinClasses(ctx); OSClasses(ctx); KeepHardClasses(ctx); EvalContextHeapAddHard(ctx, CF_AGENTTYPES[config->agent_type]); SetReferenceTime(ctx, true); *policy = GenericAgentLoadPolicy(ctx, config); KeepPromises(ctx, *policy, config); Summarize(); } else { Log(LOG_LEVEL_INFO, "File changes contain errors -- ignoring"); PROMISETIME = time(NULL); } } else { Log(LOG_LEVEL_DEBUG, "No new promises found"); } }